Pretherapy Identification of Patients at Risk of Receiving a High Renal Dose Undergoing Peptide Receptor Radionuclide Therapy Abstract #1263

Introduction: 68GaDOTA TATE imaging of patients with neuroendocrine tumours has shown that tumour sequestration is a major factor leading to a sink effect that decreases activity concentration in healthy tissues, particularly the renal parenchyma.
Aim(s): Based on this sink effect, we propose a quantitative method for pretherapy identification of patients at risk of receiving a high renal dose while undergoing peptide receptor radionuclide therapy (PRRT).
Materials and methods: 26 patients undergoing 177LuDOTA TATE PRRT received individual dosimetry via quantitative SPECT for their first cycle of treatment. For each patient, the mean renal dose was calculated and compared to pretherapy 68GaDOTA TATE PET imaging.
Conference: 13th Annual ENETS conference 2016 (2016)
Category: Imaging (radiology, nuclear medicine, endoscopy)
Presenting Author: Dr Steven Goodman
Keywords: dosimetry, PRRT

To read results and conclusion, please login ...

Further abstracts you may be interested in

#2863 Introduction of Dosimetry on PRRT Practice. A Useful Tool to Detect Responders and Evaluate Treatment Safety
Introduction: PRRT is a recognized salvage option for G1-G2 GEPNET. Currently, the Italian protocol (Lutathera AIFA Guidelines) consists in four fixed-dose of 177 Lu-DOTATATE. The dosimetry has recently been recognized as an important tool to guide PRRT but is not yet part of routine practice.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Case reports
Presenting Author: MD Federica Scalorbi
#2996 A Head-to-Head Comparison between Two Software Packages for Hybrid Dosimetry after PRRT
Introduction: The number of dosimetry studies after PRRT is increasing, yet different methodologies are used which challenge comparison or pooling of results.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Nuclear Medicine - Imaging and Therapy (PRRT)
Presenting Author: Daphne Huizing
#2069 Tumor Absorbed Dosimetry and Response of Radionuclide Therapy in Metastatic Neuroendocrine Tumor
Introduction: Increased tumour lesion absorbed dosimetry (TLAD) from peptide receptor radionuclide therapy (PRRT) is associated with neuroendocrine tumours (NET) response. Responses to PRRT might be impacted by NET grade, site of origin and use of concurrent chemotherapy.
Conference: 15th Annual ENETS conference 2018 (2018)
Category: Nuclear Medicine - Imaging and Therapy (PRRT)
Presenting Author: Dr Rahul Ladwa
Authors: Ladwa R, Pattison D, Smith J, Goodman S, ...
#2998 Inter- and Intrapatient Mean Absorbed Dose Variation and Simplification of Dosimetric Workflow after PRRT
Introduction: Post-PRRT dosimetry is not routinely performed, partly due to required multiple imaging time points. One time point imaging would reduce patient burden, and make dosimetry more applicable in the clinical settings.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Nuclear Medicine - Imaging and Therapy (PRRT)
Presenting Author: Daphne Huizing
#2917 Quantification of Intratherapeutic SPECT/CT for Lutetium-177-DOTATOC PRRT in Neuroendocrine Tumors
Introduction: In PRRT for NET, feasibility of lesion uptake quantification in Lu-177-DOTATOC SPECT/CT for therapy monitoring remains unclear.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Trials in Progress/Trials in Concept
Presenting Author: Markus Galler
Authors: Galler M, Schatka I, Buch F, Bluemel S, ...